CVE-2026-40304

Gravedad CVSS v3.1:

MEDIA

Tipo:

CWE-284 Control de acceso incorrecto

Fecha de publicación:

17/04/2026

Última modificación:

23/04/2026

Descripción

*** Pendiente de traducción *** zrok is software for sharing web services, files, and network resources. Prior to version 2.0.1, the unaccess handler (controller/unaccess.go) contains a logical error in its ownership guard: when a frontend record has environment_id = NULL (the marker for admin-created global frontends), the condition short-circuits to false and allows the deletion to proceed without any ownership verification. A non-admin user who knows a global frontend token can call DELETE /api/v2/unaccess with any of their own environment IDs and permanently delete the global frontend, taking down all public shares routed through it. Version 2.0.1 patches the issue.

Impacto

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severidad y Métricas:

Puntuación base: 5.30 MEDIA
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Vector de acceso (AV): A través de red
Complejidad de acceso (AC): Alto
Privilegios Requeridos (PR): Bajo
Interacción del usuario (UI): Ninguno
Alcance (S): Sin modificar
Impacto a la confidencialidad (C): Ninguno
Impacto a la integridad (I): Ninguno
Impacto a la disponibilidad (A): Alto